{"id":1468,"date":"2023-03-24T22:15:04","date_gmt":"2023-03-24T14:15:04","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1468"},"modified":"2023-04-28T20:35:54","modified_gmt":"2023-04-28T12:35:54","slug":"spring-cloud-uses-nacos-as-service-configuration-center","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/24\/spring-cloud-uses-nacos-as-service-configuration-center\/","title":{"rendered":"Spring Cloud\u4f7f\u7528Nacos\u4f5c\u4e3a\u670d\u52a1\u914d\u7f6e\u4e2d\u5fc3"},"content":{"rendered":"

Nacos \u63d0\u4f9b\u7528\u4e8e\u5b58\u50a8\u914d\u7f6e\u548c\u5176\u4ed6\u5143\u6570\u636e\u7684key\/value<\/code>\u5b58\u50a8\uff0c\u4e3a\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u7684\u5916\u90e8\u5316\u914d\u7f6e\u63d0\u4f9b\u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237\u7aef\u652f\u6301\u3002\u4f7f\u7528 Spring Cloud Alibaba Nacos Config\uff0c\u60a8\u53ef\u4ee5\u5728 Nacos Server \u96c6\u4e2d\u7ba1\u7406\u4f60 Spring Cloud \u5e94\u7528\u7684\u5916\u90e8\u5c5e\u6027\u914d\u7f6e\u3002<\/p>\n

\u521b\u5efa\u4e00\u4e2aconfig\u670d\u52a1<\/h2>\n

\uff081\uff09\u65b0\u5efa\u4e00\u4e2aconfig\u670d\u52a1\uff0c\u5728pom\u6587\u4ef6\u4e2d\u6dfb\u52a0\u5fc5\u8981\u4f9d\u8d56<\/p>\n

<\/p>\n

<parent>\n    <groupId>org.springframework.boot<\/groupId>\n    <artifactId>spring-boot-starter-parent<\/artifactId>\n    <version>2.2.7.RELEASE<\/version>\n<\/parent>\n\n<dependencies>\n    <dependency>\n      <groupId>com.alibaba.cloud<\/groupId>\n      <artifactId>spring-cloud-starter-alibaba-nacos-config<\/artifactId>\n    <\/dependency>\n<\/dependencies>\n\n<dependencyManagement>\n    <dependencies>\n      <!--Spring cloud Hoxton.SR4-->\n      <dependency>\n        <groupId>org.springframework.cloud<\/groupId>\n        <artifactId>spring-cloud-dependencies<\/artifactId>\n        <version>Hoxton.SR4<\/version>\n        <type>pom<\/type>\n        <scope>import<\/scope>\n      <\/dependency>\n      <!--Spring cloud alibaba 2.2.2.RELEASE-->\n      <dependency>\n        <groupId>com.alibaba.cloud<\/groupId>\n        <artifactId>spring-cloud-alibaba-dependencies<\/artifactId>\n        <version>2.2.2.RELEASE<\/version>\n        <type>pom<\/type>\n        <scope>import<\/scope>\n      <\/dependency>\n    <\/dependencies>\n<\/dependencyManagement><\/code><\/pre>\n
\uff082\uff09\u5728\u914d\u7f6e\u6587\u4ef6\u6307\u5b9aconfig\u5730\u5740\u7b49\u4fe1\u606f<\/p>\n
\n
\u6ce8\u610f\uff1a\u4e0d\u80fd\u4f7f\u7528\u539f\u6765\u7684application.yml<\/code>\u4f5c\u4e3a\u914d\u7f6e\u6587\u4ef6\uff0c\u800c\u662f\u65b0\u5efa\u4e00\u4e2abootstrap.yml<\/code>\u4f5c\u4e3a\u914d\u7f6e\u6587\u4ef6<\/p>\n
\u914d\u7f6e\u6587\u4ef6\u52a0\u8f7d\u7684\u4f18\u5148\u7ea7\uff08\u7531\u9ad8\u5230\u4f4e\uff09<\/p>\n<\/blockquote>\n
bootstrap.properties -> bootstrap.yml -> application.properties -> application.yml<\/code><\/pre>\n
server:\n  port: 9002\nspring:\n  profiles:\n    active: dev\n  application:\n    name: nacos-config-server\n  cloud:\n    nacos:\n      config:\n        server-addr: 127.0.0.1:8848 # \u914d\u7f6e\u4e2d\u5fc3\n        file-extension: yaml # \u8fd9\u91cc\u6307\u5b9a\u7684\u6587\u4ef6\u683c\u5f0f\u9700\u8981\u548cnacos\u4e0a\u65b0\u5efa\u7684\u914d\u7f6e\u6587\u4ef6\u540e\u7f00\u76f8\u540c\uff0c\u5426\u5219\u8bfb\u4e0d\u5230<\/code><\/pre>\n
\uff083\uff09\u5728nacos\u5ba2\u6237\u7aef\u914d\u7f6e\u7ba1\u7406\u65b0\u5efa\u4e00\u4e2a\u914d\u7f6e<\/p>\n
\"Nacos\u65b0\u5efa\u914d\u7f6e\"<\/p>\n
    \n
  • Data ID<\/code>\uff1a\u9ed8\u8ba4\u4e3a${spring.application.name}-${spring.profile.active}.${spring.cloud.nacos.config.file-extension}<\/code>\u6216${spring.application.name}.${spring.cloud.nacos.config.file-extension}<\/code><\/li>\n
  • Group\uff1a\u5bf9\u5e94\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684${spring.cloud.nacos.config.group}<\/code>\uff0c\u9ed8\u8ba4\u4e3aDEFAULT_GROUP<\/code><\/li>\n
  • \u914d\u7f6e\u683c\u5f0f\uff1a\u5bf9\u5e94\u914d\u7f6e\u6587\u4ef6\u4e2d\u7684${spring.cloud.nacos.config.file-extension}<\/code><\/li>\n
  • \u914d\u7f6e\u5185\u5bb9\uff1a\u6839\u636e\u4f60\u7684\u914d\u7f6e\u683c\u5f0f\u6309\u5bf9\u5e94\u7684\u683c\u5f0f\u586b\u5199\u5373\u53ef<\/li>\n<\/ul>\n
    \uff084\uff09\u5728config\u670d\u52a1\u4e2d\u83b7\u53d6\u914d\u7f6e\u4fe1\u606f<\/p>\n
    @SpringBootApplication\npublic class NacosConfigServerApplication {\n\n    public static void main(String[] args) {\n        SpringApplication.run(NacosConfigServerApplication.class, args);\n    }\n\n    @RestController\n    class TestController {\n\n        @Value("${config.info}")\n        private String config;\n\n        @GetMapping("\/test")\n        public String hello() {\n            return config;\n        }\n\n    }\n}<\/code><\/pre>\n
    \u6211\u4eec\u901a\u8fc7@Value<\/code>\u6ce8\u89e3\u53ef\u4ee5\u83b7\u53d6\u5230\u914d\u7f6e\u4e2d\u5fc3\u7684\u503c\u3002<\/p>\n
    @RefreshScope<\/code>\u52a8\u6001\u5237\u65b0\u914d\u7f6e\uff1a\u5728TestController<\/code>\u4e0a\u6dfb\u52a0@RefreshScope<\/code>\u6ce8\u89e3\uff0c\u7136\u540e\u6211\u4eec\u53bbNacos<\/code>\u670d\u52a1\u7aef\u624b\u52a8\u4fee\u6539config.info<\/code>\u7684\u4fe1\u606f\uff0c\u7136\u540e\u91cd\u65b0\u8c03\u7528\u8fd9\u4e2a\/test<\/code>\u63a5\u53e3\uff0c\u4f1a\u53d1\u73b0\u54cd\u5e94\u7684\u662f\u4fee\u6539\u540e\u7684\u5185\u5bb9\u3002<\/p>\n
    \u914d\u7f6e\u81ea\u5b9a\u4e49\u7684\u547d\u540d\u7a7a\u95f4<\/h2>\n
    \u7528\u4e8e\u8fdb\u884c\u79df\u6237\u7c92\u5ea6\u7684\u914d\u7f6e\u9694\u79bb\u3002\u4e0d\u540c\u7684\u547d\u540d\u7a7a\u95f4\u4e0b\uff0c\u53ef\u4ee5\u5b58\u5728\u76f8\u540c\u7684Group<\/code>\u6216Data ID<\/code>\u7684\u914d\u7f6e\u3002Namespace<\/code>\u7684\u5e38\u7528\u573a\u666f\u4e4b\u4e00\u662f\u4e0d\u540c\u73af\u5883\u914d\u7f6e\u7684\u533a\u5206\u9694\u79bb\uff0c\u4f8b\u5982\u5f00\u53d1\u6d4b\u8bd5\u73af\u5883\u548c\u751f\u4ea7\u73af\u5883\u7684\u8d44\u6e90\uff08\u5982\u914d\u7f6e\u3001\u670d\u52a1\uff09\u9694\u79bb\u7b49\u3002<\/p>\n
    \u5728\u6ca1\u6709\u660e\u786e\u6307\u5b9a\u547d\u540d\u7a7a\u95f4\u914d\u7f6e\u7684\u60c5\u51b5\u4e0b\uff0c\u9ed8\u8ba4\u4f7f\u7528\u7684\u662fNacos<\/code>\u4e0aPublic<\/code>\u8fd9\u4e2aNamespace<\/code>\u3002<\/p>\n
    \u9996\u5148\u6211\u4eec\u5728Nacos<\/code>\u670d\u52a1\u7aef\u65b0\u5efa\u4e00\u4e2a\u547d\u540d\u7a7a\u95f4\uff1a<\/p>\n
    \"Nacos\u65b0\u5efa\u547d\u540d\u7a7a\u95f4\"<\/p>\n
    \u7136\u540e\u6211\u4eec\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u65b0\u589e\u4e0b\u9762\u8fd9\u4e2a\u5c5e\u6027\uff0c\u5177\u4f53\u7684\u503c\u586b\u5199\u6211\u4eec\u65b0\u589e\u547d\u540d\u7a7a\u95f4\u7684ID\uff0c\u8fd9\u6837\u542f\u52a8config\u670d\u52a1\u540e\uff0c\u5c31\u4f1a\u81ea\u52a8\u53bb\u8fd9\u4e2a\u547d\u540d\u7a7a\u95f4\u4e0b\u5bfb\u627e\u5bf9\u5e94\u7684\u914d\u7f6e\u6587\u4ef6\u3002<\/p>\n
    spring:\n  cloud:\n    nacos:\n      config:\n        namespace:<\/code><\/pre>\n
    \u591a\u73af\u5883\u914d\u7f6e\u7684\u4e09\u79cd\u65b9\u5f0f<\/h2>\n
    \u6700\u5f00\u59cb\u7684\u65f6\u5019\u6211\u4eec\u4e5f\u8bf4\u8fc7\u5fae\u670d\u52a1\u9879\u76ee\u4f1a\u6709\u591a\u4e2a\u73af\u5883\uff0c\u6211\u4eec\u5982\u4f55\u5b9e\u73b0\u548c\u7ba1\u7406\u8fd9\u4e9b\u73af\u5883\u5462\uff1f<\/p>\n
    \u901a\u8fc7Data ID \u548cprofiles\u5b9e\u73b0<\/h3>\n
    \u53ef\u4ee5\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u6307\u5b9aspring.profiles.active = **<\/code>\uff0c\u7136\u540e\u5728Nocas<\/code>\u670d\u52a1\u7aef\u65b0\u5efa\u5bf9\u5e94\u7684${spring.cloud.nacos.config.prefix}-${spring.profiles.active}.${spring.cloud.nacos.config.file-extension}<\/code>\u914d\u7f6e\u6765\u533a\u5206\u4e0d\u540c\u7684\u73af\u5883\u3002<\/p>\n
    \u901a\u8fc7Group\u5b9e\u73b0<\/h3>\n
    \u53ef\u4ee5\u4e3a\u4e0d\u540c\u7684\u73af\u5883\u65b0\u5efa\u4e0d\u540c\u7684\u5206\u7ec4\uff0c\u7136\u540e\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\u6307\u5b9aspring.cloud.nacos.config.group=\u7ec4\u540d<\/code>\uff0c\u8fd9\u6837\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u4e0d\u540c\u73af\u5883\u7684\u533a\u5206\u3002<\/p>\n
    \u901a\u8fc7Namespace\u5b9e\u73b0<\/h3>\n
    \u8fd9\u79cd\u65b9\u5f0f\u662f\u5b98\u65b9\u5efa\u8bae\u7684\u65b9\u5f0f\uff0c\u5728Nacos<\/code>\u5ba2\u6237\u7aef\u4e2d\u65b0\u5efa\u4e0d\u540c\u7684\u5206\u7ec4\uff0c\u7136\u540e\u518d\u914d\u7f6e\u6587\u4ef6\u4e2d\u6307\u5b9anamespace<\/code>\u5c31\u53ef\u4ee5\u533a\u5206\u4e0d\u540c\u7684\u73af\u5883\u3002<\/p>\n
    \u81ea\u5b9a\u4e49\u6269\u5c55\u7684Data ID<\/h2>\n
    \u5927\u591a\u6570\u65f6\u5019\u6211\u4eec\u53ef\u80fd\u66f4\u52a0\u503e\u5411\u4e8e\u5c06\u4e0d\u540c\u7684\u914d\u7f6e\u5206\u5f00\u5199\u5230\u4e0d\u540c\u7684\u914d\u7f6e\u6587\u4ef6\u4e2d\uff0c\u6bd4\u5982\u6211\u60f3\u628a\u6587\u4ef6\u7c7b\u548c\u65e5\u5fd7\u7c7b\u7684\u914d\u7f6e\u62c6\u5206\u5f00\u5199\u5230\u4e24\u4e2a\u914d\u7f6e\u4e2d\uff0cNacos<\/code>\u4e5f\u662f\u652f\u6301\u8fd9\u79cd\u5199\u6cd5\u7684\u3002<\/p>\n
    \uff081\uff09\u5728Nacos<\/code>\u4e2d\u65b0\u5efa\u4e24\u4e2aData ID<\/code>\u5206\u522b\u662flog.yaml<\/code>\u548cfile.yaml<\/code>\u7684\u6587\u4ef6<\/p>\n
    \u6211\u4eec\u5728\u914d\u7f6e\u6587\u4ef6\u4e2d\u5206\u522b\u52a0\u5165\u4ee5\u4e0b\u5185\u5bb9\uff1alog:level: 2<\/code>\uff0cfile:url: "http:\/\/www.appblog.cn"<\/code>\u3002<\/p>\n
    \uff082\uff09\u5982\u4f55\u914d\u7f6e<\/p>\n
    spring:\n  cloud:\n    nacos:\n      config:\n        extension-configs[0]:\n          data-id: log.yaml\n          group: DEFAULT_GROUP   # \u9ed8\u8ba4\u4e3aDEFAULT_GROUP\n          refresh: true   # \u662f\u5426\u52a8\u6001\u5237\u65b0\uff0c\u9ed8\u8ba4\u4e3afalse\n        extension-configs[1]:\n          data-id: file.yaml\n          group: DEFAULT_GROUP\n          refresh: true<\/code><\/pre>\n
    \u4e3a\u4e86\u66f4\u52a0\u6e05\u6670\u7684\u5728\u591a\u4e2a\u5e94\u7528\u95f4\u914d\u7f6e\u5171\u4eab\u7684Data Id<\/code>\uff0c\u5b98\u65b9\u63a8\u8350\u4f7f\u7528\u5982\u4e0b\u914d\u7f6e\uff1a<\/p>\n
    spring:\n  cloud:\n    nacos:\n      config:\n        shared-configs[0]:\n          data-id: log.yaml\n          group: DEFAULT_GROUP   # \u9ed8\u8ba4\u4e3aDEFAULT_GROUP\n          refresh: true   # \u662f\u5426\u52a8\u6001\u5237\u65b0\uff0c\u9ed8\u8ba4\u4e3afalse\n        shared-configs[1]:\n          data-id: file.yaml\n          group: DEFAULT_GROUP\n          refresh: true<\/code><\/pre>\n
    \uff083\uff09\u6df1\u5165\u601d\u8003\uff0c\u65e2\u7136\u6211\u4eec\u6709\u4e24\u4e2a\u914d\u7f6e\u6587\u4ef6\uff0c\u5047\u5982\u4e24\u4e2a\u914d\u7f6e\u6587\u4ef6\u4e2d\u51fa\u73b0\u4e00\u6837\u7684key\u503c\uff0c\u8fd9\u6837\u6211\u4eec\u7a0b\u5e8f\u4e2d\u4f1a\u52a0\u8f7d\u54ea\u4e2a\u914d\u7f6e\u5462<\/p>\n
    \u5176\u5b9eNacos<\/code>\u5728\u8bbe\u8ba1\u7684\u65f6\u5019\u4e5f\u8003\u8651\u5230\u4e86\u4f18\u5148\u7ea7\u95ee\u9898\uff0c\u4e0b\u9762\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u3002<\/p>\n
    \u6211\u4eec\u5c06file.yaml<\/code>\u4e2d\u7684\u914d\u7f6e\u6539\u6210log:level: 22<\/code>\u3002\u5199\u4e2a\u63a5\u53e3\u53d6\u4e00\u4e0b\u914d\u7f6e\uff0c\u770b\u770b\u5b83\u53d6\u5230\u7684\u662f\u54ea\u4e2a\u6587\u4ef6\u7684\u5185\u5bb9\u3002<\/p>\n
    @RefreshScope\nclass TestController {\n\n    @Value("${log.level}")\n    private String log;\n\n    @GetMapping("\/test")\n    public String hello() {\n        return "log.lelve="+log;\n    }\n}<\/code><\/pre>\n
    \"Nacos\u516c\u5171\u914d\u7f6e\u4f18\u5148\u7ea7\u6d4b\u8bd5\"<\/p>\n
    \u7ed3\u679c\u53d6\u5230\u7684\u662ffile.yaml<\/code>\u4e2d\u7684\u914d\u7f6e\uff0c\u8fd9\u662f\u56e0\u4e3a\u591a\u4e2aData Id<\/code>\u540c\u65f6\u914d\u7f6e\u65f6\uff0c\u4f18\u5148\u7ea7\u5173\u7cfb\u662fspring.cloud.nacos.config.extension-configs[n].data-id<\/code>\u5176\u4e2dn<\/code>\u7684\u503c\u8d8a\u5927\uff0c\u4f18\u5148\u7ea7\u8d8a\u9ad8<\/strong>\u3002<\/p>\n
    \n
    \u6ce8\u610f\uff1aspring.cloud.nacos.config.extension-configs[n].data-id<\/code>\u7684\u503c\u5fc5\u987b\u5e26\u6587\u4ef6\u6269\u5c55\u540d\uff0c\u6587\u4ef6\u6269\u5c55\u540d\u65e2\u53ef\u652f\u6301properties<\/code>\uff0c\u53c8\u53ef\u4ee5\u652f\u6301yaml\/yml<\/code>\u3002\u6b64\u65f6spring.cloud.nacos.config.file-extension<\/code>\u7684\u914d\u7f6e\u5bf9\u81ea\u5b9a\u4e49\u6269\u5c55\u914d\u7f6e\u7684Data Id<\/code>\u6587\u4ef6\u6269\u5c55\u540d\u6ca1\u6709\u5f71\u54cd\u3002<\/p>\n<\/blockquote>\n
    \u6269\u5c55\uff1a\u4e0d\u540c\u65b9\u5f0f\u914d\u7f6e\u52a0\u8f7d\u4f18\u5148\u7ea7<\/h2>\n
    Spring Cloud Alibaba Nacos Config \u76ee\u524d\u63d0\u4f9b\u4e86\u4e09\u79cd\u914d\u7f6e\u80fd\u529b\u4eceNacos<\/code>\u62c9\u53d6\u76f8\u5173\u7684\u914d\u7f6e\u3002<\/p>\n
      \n
    • A: \u901a\u8fc7spring.cloud.nacos.config.shared-configs[n].data-id<\/code>\u652f\u6301\u591a\u4e2a\u5171\u4eabData Id<\/code>\u7684\u914d\u7f6e<\/li>\n
    • B: \u901a\u8fc7spring.cloud.nacos.config.extension-configs[n].data-id<\/code>\u7684\u65b9\u5f0f\u652f\u6301\u591a\u4e2a\u6269\u5c55Data Id<\/code>\u7684\u914d\u7f6e<\/li>\n
    • C: \u901a\u8fc7\u5185\u90e8\u76f8\u5173\u89c4\u5219(spring.cloud.nacos.config.prefix<\/code>\u3001spring.cloud.nacos.config.file-extension<\/code>\u3001spring.cloud.nacos.config.group<\/code>)\u81ea\u52a8\u751f\u6210\u76f8\u5173\u7684Data Id<\/code>\u914d\u7f6e<\/li>\n<\/ul>\n
      \u5f53\u4e09\u79cd\u65b9\u5f0f\u5171\u540c\u4f7f\u7528\u65f6\uff0c\u4f18\u5148\u7ea7\u5173\u7cfb\u662f: A < B < C<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"
      Nacos \u63d0\u4f9b\u7528\u4e8e\u5b58\u50a8\u914d\u7f6e\u548c\u5176\u4ed6\u5143\u6570\u636e\u7684key\/value\u5b58\u50a8\uff0c\u4e3a\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u7684\u5916\u90e8\u5316\u914d\u7f6e\u63d0\u4f9b\u670d\u52a1\u5668\u7aef\u548c\u5ba2\u6237 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,42],"tags":[],"class_list":["post-1468","post","type-post","status-publish","format-standard","hentry","category-nacos","category-spring-cloud"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1468"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1468\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}